SPECTRACOOL Air Conditioner G52 Model INSTRUCTION MANUAL Rev.
TABLE OF CONTENTS Warranty and Return Policy....................................................................................................................................................................................2 RECEIVING THE AIR CONDITIONER......................................................................................................................................................................3 HANDLING AND TESTING THE AIR CONDITIONER................................................
RECEIVING THE AIR CONDITIONER Inspect the air conditioner. Check for concealed damage that may have occurred during shipment. Look for dents, scratches, loose assemblies, evidence of oil, etc. Damage evident upon receipt should be noted on the freight bill. Damage should be brought to the attention of the delivering carrier -- NOT to nVent Equipment Protection -- within 15 days of delivery. Save the carton and packing material and request an inspection. Then file a claim with the delivering carrier.
TECHNICAL INFORMATION SEQUENCE OF OPERATION The air conditioner comes standard with two internally mounted thermostats. There are two modes of operation; heating and cooling. During heating and cooling modes, the evaporator fan will be running. HEATING When the enclosure temperature is below the heating thermostat setpoint, power is applied to the heaters. When the enclosure temperature is 10 degrees above the setpoint, the heater is powered off.
PHASE MONITOR This product is equipped with Phase/Voltage Protection. Please verify correct phasing and voltage before operating. Note the fans may still operate if phasing is incorrect, but the compressor will not, so the unit will not cool. Illuminated light on Phase Monitor indicates phase is correct. If the light is not illuminated, disconnect power from the unit and swap any two power leads at the terminal block. This should correct the phasing. The light should now illuminate when power is reapplied.
G52 ALL OTHER GENERIC 1-PHASE SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) G52 GENERIC 3-PHASE SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) -6- © 2018 nVent 89101404
G521216GXXX GENERIC WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) 89081449 89101404 © 2018 nVent -7-
G52 ALL OTHER GENERIC 1-PHASE WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) 89081442 -8- © 2018 nVent 89101404
G52 GENERIC 3-PHASE WIRE DIAGRAM (ACTUAL UNIT OPTIONS MAY VARY) 89101404 © 2018 nVent -9-
INSTALLATION INSTRUCTIONS 1. Inspect the air conditioner and verify correct functionality before mounting the air conditioner. See HANDLING AND TESTING THE AIR CONDITIONER on page 3. 2. Using the mounting gasket kit provided with the unit, install gaskets to the air conditioner, see Figure 1. 3. Mount air conditioner on enclosure taking care not to damage the mounting gasket. The mounting gasket is the seal between the air conditioner and the enclosure.
12000 BTU/HR.
8000 BTU/HR. (G520846G15X) WITH THERMOSTATS 15.18 385.5 .97 24.7 .65 (2) 16.6 11.65 296 17.12 434.9 WARM AIR OUT 4.99 126.7 .56 (6) 14.3 1.63 41.3 (2) ENCLOSURE AIR IN 14.01 355.9 (2) POWER INLET 6.62 168.2 9.88 250.8 (2) 13.46 342 9.88 250.8 (2) REMOVABLE HANGING TABS COOLING THERMOSTAT 9.88 250.8 (2) 52.63 1336.9 AMBIENT AIR IN 40.10 1018.4 HEAT THERMOSTAT 9.88 250.8 (2) COOL AIR OUT 7.50 190.5 9.88 250.8 (2) CLEANABLE, REUSABLE ALUMINUM INLET FILTER BEHIND REMOVABLE PANEL.
89061033 88015593 SURFACE MOUNT SURFACE MOUNT (3-PHASE VOLTAGE) 88017668 PARTIAL RECESS MOUNT Figure 1 Cutout Dimensions 89101404 © 2018 nVent - 13 -
REMOTE ACCESS CONTROL (OPTIONAL) INTRODUCTION The Remote Access Control is a parametric controller for the complete management of air conditioners. All settings are pre-programmed at the factory. Cooling/heating set-points, cooling/heating differential and high /low temperature alarm set-points can be adjusted by the user. Alarms are outputted through a relay contact and also can be accessed through an Ethernet connection utilizing SNMP, EtherNet/IP and Modbus TCP.
DISPLAYING AND CHANGING PROGRAM VARIABLES Access: To view and/or change parameters, press and hold the Prg and Sel buttons for greater than 5 seconds. Press the up or down arrow buttons until “22” is displayed, then press Sel button. When “S-P” is displayed, press Sel. Navigation: Press up or down arrows to display sub-menus then press Sel to select the desired sub-menu. In the sub-menu, use up or down arrows to display parameters for viewing or changing and press Sel.
ALARM INPUT CONNECTION The Remote Access Control can accept a dry contact/switch input via the two 18 AWG white wires located at the back of the air conditioner. This input is associated with the controller display alarm mnemonic TP (door open and/or smoke detected). [To use this feature, remove the splice connector connecting the two white wires and connect customer supplied enclosure door switch in its place.
USING THE PC INTERFACE TOOL The PC Interface Tool gives the user the ability to communicate with the air conditioner unit to read/write parameters using either Ethernet or USB connections. USB COMMUNICATION MODE NOTE: Before connecting unit to the PC, make note of the comm ports present. After the unit is connected to the PC, a new comm port will be added to the list. Use this new comm port.
ETHERNET COMMUNICATION MODE • • • From Tools menu select Use Ethernet When Use Ethernet is checked, Comm Port selection is disabled, Device IP and Community boxes are shown and Ethernet communication can be used. Enter unit’s IP Address and Community string in Device IP and Community boxes at the bottom of the PC Interface Tool. Each unit has two community strings. One is a Read/Write community string (defaulted to ‘private’) that can be changed by the customer (must be 4 to 8 characters long).
REMOTE ACCESS CONTROL PIN-OUT FUNCTION NAME PIN # WIRE # COOL No1 1 ORG78 C1/2 2 BLK No2 7 BRN76 C1/2 3 BLK HEAT ENCL MI U1 OUTPUTS No3 8 BLK77 C3/4 4 BLK No4 (na) 9 BLK C3/4 10 BLK No5 12 YEL39 C5 6 YEL38 NA x 5 NA NA x 11 NA ALARM INPUT CONNECTION ID1 8 WHT63 MALFUNCTION NC SWITCH ID2 1 BLU88 NA ID3 (na) 9 BLU NA ID4 (na) 2 BLU NA ALARM RELAY OUTPUT U2 INPUTS U3 DATA 89101404 NA ID5 (na) 10 BLU DIGITAL INPUT GROUND ID GND 3 BLU NA Y
SCHEMATIC AND WIRING DIAGRAM FOR REMOTE ACCESS CONTROL G52 1-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) - 20 - © 2018 nVent 89101404
G52 GENERIC 3-PHASE SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 89101404 © 2018 nVent - 21 -
G52 GENERIC WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) - 22 - © 2018 nVent 89101404
G52 GENERIC 3-PHASE WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) 89101404 © 2018 nVent - 23 -
DIMENSIONAL DRAWINGS G52 GENERIC MODEL DRAWING WITH REMOTE ACCESS CONTROL - 24 - © 2018 nVent 89101404
INSTALLATION INSTRUCTIONS WITH REMOTE ACCESS CONTROL 1. Inspect the air conditioner and verify correct functionality before mounting the air conditioner. See HANDLING AND TESTING THE AIR CONDITIONER on page 19. 2. Using the mounting gasket kit provided with the unit, install gaskets to the air conditioner, see Figure 2. 3. Mount air conditioner on enclosure taking care not to damage the mounting gasket. The mounting gasket is the seal between the air conditioner and the enclosure.
MAINTENANCE COMPRESSOR The compressor requires no maintenance. It is hermetically sealed, properly lubricated at the factory and should provide years of satisfactory operating service. Under no circumstances should the access fitting covers be loosened, removed or tampered with. Breaking of seals on compressor access fittings during warranty period will void warranty on hermetic system.
CONDENSER AND EVAPORATOR AIR MOVERS Impeller motors require no maintenance. All bearings, shafts, etc. are lubricated during manufacturing for the life of the motor. If one of the condenser impeller motors (ambient impellers) should fail, it is not necessary to remove the air conditioner from the cabinet or enclosure to replace the blower. The condenser blower is mounted on its own bulkhead and is easily accessible by removing the front cover.
REFRIGERANT PROPERTIES CHART (R 134A) °F -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 Unit G520816GXXX G520826GXXX G521216GXXX G521226GXXX G520846GXXX G521246GXXX - 28 - °C -40 -37.2 -34.4 -31.7 -28.9 -26.1 -23.3 -20.6 -17.8 -15 -12.2 -9.4 -6.7 -3.9 -1.1 1.7 4.4 7.2 10 12.8 Pressure -14.7 -12.3 -9.7 -6.8 -4 0 2 4 7.5 9 12 15 18.5 22 26 30 35 40 45.5 51.5 °F 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 °C 15.6 18.3 21.1 23.9 26.7 29.4 32.2 35 37.8 40.
8000 BTU/HR. UNIT CHARACTERISTICS Part Number G520816GXXX G520826GXXX G520846G06X Dimensional Data Height 52.69/1338.4 mm Width 17.12/435 mm Depth 11.66/296.1 mm Unit Weight 128 lbs / 58.1 kg Unit Protection Rating 138 lbs/62.6 kg Type 12/4/4X/3R Cooling Data Refrigerant R134A Refrigerant Charge 24 oz. Cooling Capacity at 95 F Enclosure 95 F Ambient (BTU/Hr./W) 6000/6800 7400/8200 Cooling Capacity at Max Conditions (BTU/Hr.
12000 BTU/HR. UNIT CHARACTERISTICS Part Number G521216GXXX G521226GXXX G521246GXXX Dimensional Data Height 52.69/1338.4 mm Width 17.12/435 mm Depth 11.66/296.1 mm Unit Weight 131 lbs/59.4 kg Unit Protection Rating 141 lbs / 64.0 kg Type 12/4/4X/3R Cooling Data Refrigerant R134A Refrigerant Charge 38 oz. Cooling Capacity at 95 F Enclosure 95 F Ambient (BTU/Hr./W) 9900/10700 Cooling Capacity at Max Conditions (BTU/Hr.
SERVICE DATA Part Description COMPONENTS LIST Part Number G520846GXXX G521246GXXX G520816GXXX G520826GXXX 315 mA Fuse 89085115 Bridge Rectifier 89087424 G521216GXXX G521226GXXX Capacitor, Compressor, Run N/A N/A 52-6032-01 S-6173 52-6032-06 52-6032-01 Capacitor, Compressor, Start N/A N/A 10-1032-08 10-1032-08 10-1032-32 10-1032-08 Capacitor, Impellers (3) 52-6032-14 52-6032-14 N/A N/A N/A N/A Capacitor, Impellers (3) N/A N/A 52-6032-13 52-6032-14 52-6032-13 52-6032-14
TROUBLE SHOOTING BASIC AIR CONDITIONING TROUBLE SHOOTING CHECK LIST - THERMOSTAT VERSION 1. Check manufacturer’s nameplate located on the unit for correct power supply. 2. Turn on power to the unit. The evaporator (Enclosure or “COLD” air) impeller should come on. Is there airflow? YES, proceed to step 3. NO, possible problem: »» Open motor winding »» Stuck impeller motor »» Obstructed wheel Repair or Replace defective part 3. Check phase monitor indicator light, is it Illuminated? YES, proceed to step 4.
8. Make sure the coils are clean. Then check evaporator “air in” and “air out” temperatures. If the temperatures are the same: »» Possible loss of refrigerant »» Possible bad valves in the compressor Repair or Replace defective part 9. To check for a bad thermostat, turn power to the unit off. Remove the upper access panel and place both thermostat wires onto one terminal (replace upper access panel for safety). This will activate the switch in the thermostat.
BASIC AIR CONDITIONING TROUBLE SHOOTING CHECK LIST - REMOTE ACCESS CONTROL VERSION 1. Check manufacturer’s nameplate located on the unit for correct power supply. 2. Turn on power to the unit. The controller will display a start up sequence then revert to the normal temperature display mode. Is the correct enclosure temperature displayed? Note: The temperature may be alternating with an alarm code. YES, proceed to step 3. NO, possible problem: »» Open controller fuse »» Controller in alarm condition.
7. The compressor and the condenser (Ambient or “HOT” air) impeller(s) should turn on. Is there adequate airflow? YES, proceed to step 8. NO, possible problem: »» Open motor winding(s) »» Stuck impeller(s) »» Obstructed wheel(s) »» Defective motor capacitor(s) Repair or Replace defective part 8. Carefully check the compressor for proper operation - motor should cause slight vibration and the outer case of the compressor should be warm.
NOTES - 36 - © 2018 nVent 89101404
NOTES 89101404 © 2018 nVent - 37 -
NOTES - 38 - © 2018 nVent 89101404
NOTES 89101404 © 2018 nVent - 39 -
P8GPV *QHHOCP 9C[ #PQMC /0 75# P8GPV EQO Rev.
